Dehumidifi ersTake control of humidity and condensation with the Calorex industry leading range of dehumidifi ers

ff ll f d h idifi f i d t i l dd i l li tiffull range of dehumidifi ers for industrial andd ccommercial applications

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ffull range of dehumidifiers for industrial andd commercial applications

heat recovery and space heating options

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heat recovery and space heating options

save up to 75% on running costs and carbon emissssionssave up to 75% on running costs and carbon emiisssions

Corrosion Speedof Steel

With an RH of over 60% the rate of corrosion on steel rises rapidly.At an RH of approximately 50%,

virtually no corrosion occurs.

20 40 60 80 100

3

0

6

9

12

Rus

t inc

reas

e in

55

days

, gra

mm

es p

er s

quar

e m

etre

Relative humidity in %

Atmospheric air contains moisture which is a problem to materials and manufacturing processes

Protect your environmentEven when you cannot see it, moisture in the

form of water vapour is all around us, held in

suspension in the air. The relative humidity of

the air in many cases determines the extent

of corrosion of certain materials, the speed

at which moulds develop and the rate of

increase of bacteria that cause decay.

Most materials and goods are best stored

under cool dry conditions.

A false economyTraditionally the problem was disguised by

the use of heat or ventilation. This process is

exceptionally energy ineffi cient and reliant

on introducing outside air that is generally

not suitable unless expensively heated.

Drying by traditional heating involves

continuously warming a stream of outside

air on a constant ‘in and out’ cycle.

Relative HumidityRelative humidity (RH) is the expression used

to defi ne how much water vapour can be

held in the air at a given temperature as a

percentage of what it could contain at

saturation (100% RH). That is when the

relative humidity reaches the level at

which air can hold no more moisture. The

maximum amount can vary according to

its temperature - warmer air is capable of

holding more moisture than colder air.

THE CHALLENGE

Heating and ventilation is extremely energy ineffi cient and expensive, luckily a solution does exist to make the air drier without heating – Calorex dehumidifi cation

Leaders in our fi eld: Cold stores

Utility buildings

Computer rooms

Switching & power stations

Electronics production

Pharmaceutical production

Manufacturing areas

Process drying

Bottling & food plants

Archives, museums & libraries

Sports halls

Wet clothes drying rooms

Ice rinks

Boiler rooms

Ship building & offshore

Underground rooms

The challenges of excess moisture:

Corrosion

Product deterioration

Condensation

Damp

Mould and mildew

Prolonged drying

Manufacturing delays

Discomfort

How a Calorex Dehumidifier Works

Principles of operation – air to air dehumidifier

Humid Air Dry, WarmAir

Expansion

Evaporator Condenser Compressor

Condensateto waste

20˚C28˚C

80%40%

The Calorex answer to this problem is its wide range of dehumidifi ers suitable for every environment from warehouses and sub-stations to museums and garages

THE SOLUTION!

A better wayDehumidifi cation is much more sophisticated

than heating. It recirculates the same air and

physically removes moisture from it. This

alleviates the need to continuously reheat

incoming air. Not only that, a dehumidifi er

will cleverly convert energy taken out of the

room as moisture (latent energy), to create

‘sensible energy’ that can be used to heat the

room, accelerating the drying process.

Problem solved Our wide range of units and operating

temperatures ensure there is a system to fi t

The process of dehumidifi cation involves moisture-laden air being drawn into a dehumidifi er where the air passes across a refrigerated coil. The air is rapidly cooled below its dew point, condensing the water vapour and recovering its latent heat energy for re-use. The cooled air is then passed across the condenser where it is reheated and returned to the served area at the required lower relative humidity.

every need. From high tech problems

requiring sophisticated ‘total loss’ or ‘keep

dry recirculation’ systems to a simple off

the shelf mobile dehumidifi er to plug in

and go - Calorex are unique problem

solvers in their fi eld.

Drying fl ooded areas or

new buildings

Preservation of buildings,

plant, ships, drilling platforms

& turbines

Applying industrial coatings

Maintaining bridges & locks

Storage of:

- vehicles

- metals

- chemical/technical materials

- electronic & electrical components

- hygroscopic substances

- sugar, salt, coffee, cocoa, herbs,

tea etc.

- timber

- furniture

- ceramics & textiles

- paper & cardboard boxes

- beers, wines & spirits

- fl owers & plants

- livestock & zoo animals

- military plant & equipment

Calorex is the world’s leading designer and manufacturer of industrial and commercial dehumidifi ers

Key benefi ts of a Calorex dehumidifi er:

Energy effi cient

Low temperature operation

Heat recovery to air

Automatic operation

Quality construction

Optional features

Simple installation

Minimal maintenance

Long service life

Comprehensive service network

Environmentally friendly R407C refrigerant

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓Especially for use in:

- Public buildings

- Changing rooms

- Store rooms and stairwells

- Cellars and basements

✓Self contained with fully automatic operation

✓ Integral humidistat

✓Tamper proof controls

✓Epoxy polyester painted zintec steel cabinet

✓Hot gas defrost for low temperature operation

✓Air fi lter

www.calorex.com A wall mounted compact dehumidifi er designed to fi t above a standard doorway

WALLMOUNTEDOTW 15

35˚C

30˚C

25˚C

20˚C

15˚C

10˚C

Litres/24 hours0 5 10 15 20 25 30

40% 50% 60% 70%

80%

1.0

0.9

0.8

0.7

0.6

0.5

0.60

0.55

0.50

0.45

0.40

0.35

*AT 60% RH

SENSIBLE HEATOUTPUT kW* TO AIR

ELECTRICALINPUT kW*

Performance DataOTW 15

• Through the wall version

SPECIFICATIONS units OTW15AX

Technical data

Operating temperature range °C 0 - 35

Dehumidifi cation @ 30°C/60%RH kg/24h 15

Heat recovered to air @ 30°C/60%RH kW 0.9

Airfl ow m³/h 225

External static pressure Pa 0

Sound pressure level @ 3m dB(A) 53

Refrigerant R407C

Electrical data

Supply V/ph/Hz 230/1N/50

Nominal power consumption kW 0.43

FLA amps 3.8

Maximum supply fuse amps 10

LRA (compressor start) amps 18

Dimensions

Width mm 825

Depth mm 363

Height mm 320

Weight kg 33

Condensate drain size mm ID 10

(fl exible plastic hose)

Options

CALOREX OTW 15

The OTW15 is tamper proof – ideal for use in public buildings

Free advice from staff qualifi ed by years of experience and strong technical knowledge